Question

Which of the following options depicts the sequence of food materials broken down during starvation?

• A. Carbohydrate $\to$ fats $\to$ proteins
• B. Carbohydrate $\to$ proteins $\to$ fats
• C. Proteins $\to$ fats $\to$ carbohydrate
• D. Fats $\to$ protein $\to$ carbohydrate

Answer 1

The correct option is A Carbohydrate $\to$ fats $\to$ proteins

Respiration is the process in which energy and several important intermediates are produced as a result of oxidation of reduced substrates like carbohydrates, fats and proteins. The carbohydrates are the fuel of choice during respiration. At times of starvation, or inavailability of carbohydrates, living system metabolise other reduced substrates- first lipids and then proteins.